Added calls to reset the ranges when the tool is resetting the zoom to the original ranges
Added calls to reset the ranges when the tool is resetting the zoom to the original ranges

burnpanck/chaco,tommy-u/chaco,burnpanck/chaco,ContinuumIO/chaco,ContinuumIO/chaco,ContinuumIO/chaco,ContinuumIO/chaco,tommy-u/chaco,tommy-u/chaco,burnpanck/chaco